--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/os_cpu/linux_zero/os_linux_zero.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2007, 2008, 2010 Red Hat, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP
+#define OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP
+
+  static void setup_fpu() {}
+
+  static bool is_allocatable(size_t bytes);
+
+  // Used to register dynamic code cache area with the OS
+  // Note: Currently only used in 64 bit Windows implementations
+  static bool register_code_area(char *low, char *high) { return true; }
+
+  // Atomically copy 64 bits of data
+  static void atomic_copy64(const volatile void *src, volatile void *dst) {
+#if defined(PPC32)
+    double tmp;
+    asm volatile ("lfd  %0, %2\n"
+                  "stfd %0, %1\n"
+                  : "=&f"(tmp), "=Q"(*(volatile double*)dst)
+                  : "Q"(*(volatile double*)src));
+#elif defined(S390) && !defined(_LP64)
+    double tmp;
+    asm volatile ("ld  %0, 0(%1)\n"
+                  "std %0, 0(%2)\n"
+                  : "=r"(tmp)
+                  : "a"(src), "a"(dst));
+#else
+    *(jlong *) dst = *(const jlong *) src;
+#endif
+  }
+
+#endif // OS_CPU_LINUX_ZERO_VM_OS_LINUX_ZERO_HPP